An online forum for exploring the conceptual foundations of quantum mechanics, quantum field theory and quantum gravity

We are delighted to announce that IJQF will organize an online 2019 International Workshop: Beyond Bell’s theorem from 1 August 2019 to 1 September 2019. The workshop will bring together leading experts in the… Read more →

Proposal for a new quantum theory of gravity IV: Black hole entropy from non-commutative geometry and spontaneous localisation. (arXiv:1909.02434v1 [gr-qc]) 下午12:42 | quant-ph updates on arXiv.org Authors: Palemkota Maithresh, Tejinder P. Singh In our recently proposed theory of quantum gravity, a black hole arises from the spontaneous localisation of an entangled state of a large number of atoms of space-time-matter [STM]. Prior… Read more →

The Frustration of being Odd: How Boundary Conditions can destroy Local Order. (arXiv:1908.10876v1 [cond-mat.stat-mech]) 上午10:25 | quant-ph updates on arXiv.org Authors: Vanja Marić, Salvatore Marco Giampaolo, Domagoj Kuić, Fabio Franchini A central tenant in the classification of phases is that boundary conditions cannot affect the bulk properties of a system. In this work we show striking, yet puzzling, evidence of a clear violation of… Read more →

Critical look at the time-energy uncertainty relations. (arXiv:1908.05273v1 [quant-ph]) 上午9:48 | quant-ph updates on arXiv.org Authors: K. Urbanowski The Heisenberg and Mandelstam-Tamm time-energy uncertainty relations are analyzed. The conlusion resulting from this analysis is that within the Quantum Mechanics of Schr\”{o}dinger and von Neumann, the status of these relations can not be considered as the same as the status of the… Read more →

In a recent archive post ([1]) Shan Gao has argued that quantum theory is incompatible with relativity. He calls this a new proof beyond Bells theorem, arguing elsewhere ([2]) that it closes the superdeterminism loophole in Bells theorem. Such strong claims must be backed up by irrefutable arguments. My aim in this post to the workshop “Beyond Bells theorem” is to refute Gaos “proof”… Read more →

From probabilistic mechanics to quantum theory. (arXiv:1907.08513v1 [quant-ph]) 下午3:18 | quant-ph updates on arXiv.org Authors: Ulf Klein We show that quantum theory (QT) is a substructure of classical probabilistic physics. The central quantity of the classical theory is Hamilton’s function $H(q,p)$, which determines canonical equations, a corresponding flow $\phi_{t}^{H}$, and a Liouville equation for the probability density $\rho(q,p,t)$. We extend this… Read more →